public class Deno {
    private String text="";
    private static Deno deno=null;
    private Deno(){}
    private Deno(String text){
        this.text=text;
    }
    public static Deno getDeno(){
        if(deno==null) return deno=new Deno("123");
        return deno;
    }
    public static Deno getDeno(String text){
        if(deno==null) return deno=new Deno(text);
        return deno;
    }
    @Override
    public String toString() {
        return this.text;
    }
}
